Valve capable of being used for long time

Abstract

The valve capable of being used for the long time comprises a valve body, a valve rod and a hand wheel, a water stop plate is formed on the inner side wall of the valve body, a water stop head corresponding to the water stop plate is arranged at the end of the valve rod, and the valve rod can be driven by rotating the hand wheel to enable the water stop head to be closed towards the water stop plate. A flexible shaft sleeve is arranged between the outer side wall of the valve body and the inner side wall of the hand wheel, when the hand wheel rotates, the flexible shaft sleeve can reinforce the stability between the outer side wall of the valve body and the inner side wall of the hand wheel, and the flexible shaft sleeve located between the outer side wall of the valve body and the inner side wall of the hand wheel can reinforce the outer side wall of the valve body and the inner side wall of the hand wheel. The circumferential side direction of the hand wheel is limited to a certain extent, left-right shaking of the hand wheel is prevented, collision between the hand wheel and the hand wheel is reduced, the hand wheel is more stable when the hand wheel is screwed, and the service life of a product is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of valves and refers to a valve that can be used for a long time effectively. Background Art

[0002] The valve mainly controls the inflow and outflow of water in the water pipe. The way it controls and blocks the water flow is to tightly fit the water stop head and the water stop plate through a lead screw.

[0003] Existing valves generally operate by turning a handwheel. Regarding the setting of the handwheel, it is generally directly connected and fixed to the end of the lead screw.

[0004] However, there are some problems or areas for improvement in the above-mentioned valves: when turning the handwheel of this type of valve, there is a lack of reinforcement on the circumferential side of the handwheel, which may cause the handwheel to shake left and right when turning, and may collide with the valve body, resulting in instability.

[0005] Therefore, this utility model will propose a solution to the above technical problems. Content of the Utility Model

[0006] The purpose of this utility model is to provide a valve that can be used for a long time effectively. A reinforcement structure is provided between the outer side wall of the valve body and the inner side wall of the handwheel, which can reduce the collision between the two, impose certain restrictions on the circumferential side of the handwheel, making it not easy to shake left and right when turning the handwheel, more stable, and increasing the service life of the valve.

[0007] The purpose of this utility model is achieved as follows: A valve includes a valve body, a valve stem, and a handwheel. A water stop plate is formed on the inner side wall of the valve body. A water stop head corresponding to the water stop plate is provided at the end of the valve stem. Turning the handwheel can drive the valve stem to close the water stop head against the water stop plate. A flexible shaft sleeve is provided between the outer side wall of the valve body and the inner side wall of the handwheel. When the handwheel rotates, the flexible shaft sleeve can reinforce the stability between the outer side wall of the valve body and the inner side wall of the handwheel.

[0008] In the above valve that can be used for a long time effectively, a first limiting ring groove is formed on the inner side wall of the handwheel, and the flexible shaft sleeve is installed on the handwheel through the first limiting ring groove.

[0009] In the above valve that can be used for a long time effectively, a second limiting ring groove is formed on the outer side wall of the valve body, and the flexible shaft sleeve is installed on the valve body through the second limiting ring groove.

[0010] In the above valve that can be used for a long time effectively, the valve body includes a valve cover. The flexible shaft sleeve includes a limiting step. When the flexible shaft sleeve is installed in the second limiting ring groove, its limiting step corresponds to the edge of the valve cover.

[0011] In the above-mentioned valve with long-term effective use, protrusions are formed on the circumferential side of the flexible shaft sleeve.

[0012] In the above-mentioned valve with long-term effective use, the prominent and beneficial technical effects of the present utility model compared with the prior art are as follows:

[0013] The valve of the present utility model is provided with a flexible shaft sleeve between the outer side wall of the valve body and the inner side wall of the handwheel, which can reinforce the connection between the two, restrict the circumferential direction of the handwheel to a certain extent, prevent it from shaking left and right, reduce the collision between the two, make the handwheel more stable when turning the handwheel, and improve the service life of the product. Description of the Drawings

[0014] Figure 1 is a cross-sectional view of the valve with long-term effective use of the present utility model.

[0015] Figure 2 is one of the exploded structural schematic diagrams of the valve with long-term effective use of the present utility model.

[0016] Figure 3 is the second exploded structural schematic diagram of the valve with long-term effective use of the present utility model.

[0017] Figure 4 is a three-dimensional structural schematic diagram of the flexible shaft sleeve of the valve with long-term effective use of the present utility model.

[0018] The meanings represented by the reference numerals in the drawings are as follows:

[0019] 1-valve body; 2-valve stem; 3-handwheel; 4-water stop plate; 5-water stop head; 6-flexible shaft sleeve;

[0020] 7-valve cover; 11-second limit ring groove; 31-first limit ring groove; 61-limit step;

[0021] 62-protrusion;. Detailed Embodiments

[0022] The present utility model will be further described below in conjunction with specific embodiments:

[0023] As Figures 1-4As shown in the figure, a valve that can be used for a long time includes a valve body 1, a valve stem 2 and a handwheel 3. A water stop plate 4 is formed on the inner side wall of the valve body 1. A water stop head 5 corresponding to the water stop plate 4 is provided at the end of the valve stem 2. Rotating the handwheel 3 can drive the valve stem 2 to close the water stop head 5 towards the water stop plate 4. A flexible shaft sleeve 6 is provided between the outer side wall of the valve body 1 and the inner side wall of the handwheel 3. When the handwheel 3 rotates, the flexible shaft sleeve 6 can strengthen the stability between the outer side wall of the valve body 1 and the inner side wall of the handwheel 3. In this technical solution, the valve body 1 is opened and closed by screwing the handwheel 3. When the handwheel 3 is screwed, the valve stem 2 is driven by it. The water stop head 5 at the end of the valve stem 2 can approach or move away from the water stop plate 4 inside the valve body 1. Since the valve stem 2 is relatively long, during the rotation process, the valve stem 2 may shake left and right, and then the side wall of the handwheel 3 and the side wall of the valve body 1 may collide. Therefore, a flexible shaft sleeve 6 is added between the two for firmness. The flexible shaft sleeve 6 is made of a deformable flexible material, such as rubber or silicone, which can greatly improve the stability when the handwheel 3 rotates.

[0024] Further, regarding the installation method of the flexible shaft sleeve 6, there are two embodiments. One is that a first limiting ring groove 31 is opened on the inner side wall of the handwheel 3, and the flexible shaft sleeve 6 is installed on the handwheel 3 through the first limiting ring groove 31. The specific solution of this embodiment can be seen in the attached Figure 2 drawing. In another embodiment, a second limiting ring groove 11 is opened on the outer side wall of the valve body 1, and the flexible shaft sleeve 6 is installed on the valve body 1 through the second limiting ring groove 11. The specific solution of this embodiment can be seen in the attached Figure 3 drawing. The common point of the two embodiments is that a limiting ring groove is opened between the side wall of the valve body and the side wall of the handwheel, and the flexible shaft sleeve 6 is accommodated through the limiting ring groove. Specifically, in the first embodiment, when the first limiting ring groove 31 is used as the installation method, the flexible shaft sleeve 6 and the first limiting ring groove 31 are in a tight fit, and the flexible shaft sleeve 6 and the side wall of the valve body 1 are in a clearance fit. In the second embodiment, when the second limiting ring groove 11 is used as the installation method, the flexible shaft sleeve 6 and the inner side wall of the handwheel are in an interference fit, and the flexible shaft sleeve 6 and the second limiting ring groove 11 are in a clearance fit. It should be noted that the flexible shaft sleeve 6 is made of a deformable flexible material, and it can be sleeved into the second limiting ring groove 11 in practice.

[0025] Further, regarding the shape and structure of the flexible shaft sleeve 6 in the second embodiment, specifically, it can be seen in the attached Figure 4 drawing. The flexible shaft sleeve 6 includes a limiting step 61. When the flexible shaft sleeve 6 is installed in the second limiting ring groove 11, its limiting step 61 corresponds to the edge of the valve cover 7, so that the flexible shaft sleeve 6 can wrap the valve body more tightly.

[0026] Further, a protrusion 62 is formed on the circumferential side of the flexible bushing 6. In this technical solution, for Embodiment 2, the protrusion 62 can reduce the friction surface between the flexible bushing 6 and the inner wall of the handwheel, reducing the generated noise. The protrusion 62 can be arc-shaped, rectangular, or trapezoidal.

[0027] The above embodiments are only preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A valve that can be used for a long time, characterized in that: The invention comprises a valve body (1), a valve stem (2) and a hand wheel (3); a water stop plate (4) is formed on the inner wall of the valve body (1); a water stop head (5) corresponding to the water stop plate (4) is arranged at the end of the valve stem (2); the hand wheel (3) can be rotated to drive the valve stem (2) so that the water stop head (5) is closed toward the water stop plate (4); a flexible shaft sleeve (6) is arranged between the outer wall of the valve body (1) and the inner wall of the hand wheel (3); when the hand wheel (3) is rotated, the flexible shaft sleeve (6) can reinforce the stability between the outer wall of the valve body (1) and the inner wall of the hand wheel (3).

2. The long-lasting valve according to claim 1, characterized in that: A first limiting ring groove (31) is provided on the inner side wall of the hand wheel (3), and the flexible shaft sleeve (6) is installed on the hand wheel (3) through the first limiting ring groove (31).

3. The long-lasting valve according to claim 1, characterized in that: A second limiting ring groove (11) is provided on the outer side wall of the valve body (1), and the flexible shaft sleeve (6) is installed on the valve body (1) via the second limiting ring groove (11).

4. The long-lasting valve according to claim 3, characterized in that: The valve body (1) comprises a valve cover (7), and the flexible shaft sleeve (6) comprises a limiting step (61). When the flexible shaft sleeve (6) is installed in the second limiting ring groove (11), the limiting step (61) corresponds to the edge of the valve cover (7).

5. The long-lasting valve according to claim 3, characterized in that: A protrusion (62) is formed on the circumferential side of the flexible sleeve (6).

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